A4 Quattro Wagon V6-3.0L (AVK) (2002)
Compressor Pulley: Service and Repair
Pulley, Removing From Compressor and Reinstalling
Pulley, Removing From Compressor And Reinstalling
NOTE:
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If overload protection of pulley triggers, check compressor for ease of motion before replacing the pulley. If compressor creates friction, replace it
completely.
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To remove pulley, it depends on engine version if it is necessary to remove compressor from engine.
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The compressor can be removed and installed from the bracket without opening the refrigerant lines.
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Mark direction of rotation of ribbed belt using chalk or felt-tip marker before removing. Reversing the direction of rotation of a run-in belt can
destroy the belt.
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Different compressors are installed, depending on engine and country version (installed on right or left at engine, 6-cyl. gasoline or diesel engine,
cold or hot country).
Removing
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Remove noise insulation.
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Bring the lock carrier into service position.
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Release tension on ribbed belt and remove it.
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Remove bolt -A- (tightening torque 20 Nm).
NOTE:
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If pulley cannot be removed with compressor installed, remove compressor from engine.
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To loosen and tighten bolt -A-, counterhold it at drive plate -B- using a commercially available pin wrench -C- (pin diameter 5.0 mm).
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Bolt -A- must be replaced (because of locking compound).
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Carefully pry off drive plate -A- using 2 screwdrivers -B-.
NOTE:
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Make sure that the collar for pulley -C- is not damaged when prying off drive plate -A-.
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There are different versions of pulley -C- and drive plate -A-, therefore note the exact dimensions.